NASD.CONF(4)NASD.CONF(4)NAMEnasd.conf - Configuration file for NAS servers.
DESCRIPTIONnasd.conf Is a file that can be used to configure the
behaiviour of the NAS server, including what devices it
will attempt to use, the minimum & maximum frequencies
used, if the device should be used in 8bit or 16bit mode,
what fragment size and number of fragments should be used
(useful for tuning the server's latency) and if the server
should be verbose when starting or output debugging infor
mation. Not all options are supported for all servers,
see the /etc/nas/nasd.conf.eg file for information on what
options are supported for which servers.
THE CONFIG FILE SYNTAX
There are up to three section in the config file. The
first section deals with global options, some of which
just turn on verbose messages when parsing the config
file, and setting debug messages on. The remaining two
sections will, if present, adjust various parameters of
the input and output devices, for those server that under
sand them.
verbose Sets a flag telling the server to report what it's
trying to do with each setting in the config file.
debug <number> Sets the debug flag, which will provide a
trace of the server's activities on stderr. Set <num> to
0 to disable debug messages, 99 for *alot* of debug mes
sages.
mixerinit YES |"NO" Set to "YES" to "NO". Defines whether
the server will init the mixer device on startup.
(voxware)
OutDevType EXT |"INT" For HPUX servers, define to "EXT" to
use the external output device (headphone/speakers) or
"INT" for the internal output device (internal speaker).
Defaults to external.
inputsection Marks the beginning of the input section,
which allows various parameters of the input device to be
set up.
end Marks the end of the input section or output section.
device devname Specifies what device is used. An example
is device "/dev/dsp".
maxrate number the maximum number of samples per second
that we'll drive the card at.
minrate number the minimum number of samples per second
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NASD.CONF(4)NASD.CONF(4)
that the card will be driven at.
maxfrags number The maximum number of of kernel buffers
that will be used for the device. the number is dynami
cally adjusted as the sampling frequency varies.
minfrags number The minimum number of kernel buffers that
will be used.
fragsize number The size of each buffer - note that the
size must be a power of 2.
wordsize number The number of bits per sample. Allowable
values are 8 and 16.
numchans number Used to decide if the card is run in
stereo or mono mode. Allowable values are 1 or 2.
SEE ALSOnas(1), auinfo(1), auplay(1), auctl(1)BUGS
Lots
AUTHORS
Stephen Hocking (sysseh@devetir.qld.gov.au), Jon Trulson
(jon@radscan.com)
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